18 Temperature Regulation (cont'd), Bone Tissue - Campbell

siennatearfulUrban and Civil

Nov 25, 2013 (3 years and 6 months ago)

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Behavioral Control



Local Control

Temperature Regulation

Temperature Regulation
-

Pathology



Fever


due to increase in set point


Control mechanisms are functioning
normally.


Experimental evidence indicates that fever is beneficial
in fighting infections.



Hyperthermia



> 106
°
F delirium, brain damage possible



> 111
°
F convulsions, coma, death



Hypothermia



chemical and biochemical considerations



temperature benchmarks

< 95
°
F drowsiness and disorientation

< 75
°
F control mechanisms no longer function


death

< 32
°
F ice crystals cause physical damage

Temperature Regulation
-

Pathology

The Skeletal System


Functions:


support


movement


protection


hemopoiesis


calcium and phosphate


storage


Fig. 8.1

Osseous Tissue



cells scattered in a matrix of collagen fibers
and calcium / phosphate salts

matrix:


like reinforced concrete

http://www.fortius.be/about_fortius_english.htm

Fig. 7.4

i.e., forms organic

matrix (collagen fibers)

Bone Cells